Dental mouth-mirror.



'PATENTED JAILS', 1905.

A. LITTAUER. DENTAL MOUTH MIRROR. APILIOATION FILED NOV.19,1903.

mm e5 T and are placed back toback'and permanently united by means of alayer or mass of hard 9 UNITED STATES- PATENT Patented January 3, 1905.

rrrcn.

DENTAL mouTH-mmnon.

SPECIFICATION forming part of Letters Patent No. 778,981, dated January3, 1905.

Application filed November 19, 1903. Serial No. 181,779. i

To all whom it mag concern.-

Be it known that I, /ALFRED LITTAUER, of

mirror, which is simple in construction, cheapv of manufacture, andcapable of being readily cleansed or otherwise manipulated.

Referring to the accompanying one sheet of drawings, which forms a partof this specification, Figure 1 is a transverse sectional view of Fig. 2on the line2 2, and Fig. 2 is a plan view of the mirror with the handleshown broken ofl.

In its preferred form the device comprises two oppositely-disposed disksof glass silvered on one side in the usual manner, one of the disksbeing flat to constitute a plane mirror A for one side and the otherbeing slightly concave to constitute an enlarging-mirror B, as indicatedin the drawings. The two mirrors are preferably of the same size andshape cement C, which conveniently extends very close to the edges ofthe disks. The kind of cement used is immaterial, so long as it servesto unite and hold the two disks firmly together and is sufiicientlydense not to have a tendency to absorb moisture. The double mirror asthus formed may be used as a pocketmirror without a handle, if desired;but for convenient use as a dental instrument I form a groove around theedge of the layer of cement and provide, a pair of clamping members D,adapted to fit in the groove and extend more than half-way around thedisks, as

indicated in Fig. 2, the construction being such that the double mirrormay be readily lnserted and removed from the holding frame combinationwith a peripheral groove aroun and when inserted will be securely heldwith either side up, as maybe desired. The groove may be formed bymilling, or the quantity of cement used to form the layer 0 may beproportioned so as to leave a crevicebetween the mirrors. In either casethe crevice or groove formed will serve the purpose of providing a seatfor the spring members D. The latter, however, represent only one ofmany possible forms of holding-frames, and it is preferred by reason ofits simplicity and the facility whereby the mirror may be reversed orremoved.

' It is to be understood that variations may be made in the form orshape of the double mirror above described and that the groove may beformed in the edges of the glass disks as well as in the cement or'thatthe holdingframe may be extended to entirely surround the mirrors, allwithout departing from the spirit and scope of my invention.

Having described my invention, what l claim is- 1. As a new article ofmanufactuiea double mirror comprising single mirrors of substantiallythe same size and contour placed back to back and united by anintermediate layer of cement disposed between them, the peripheral edgeof said double mirror being formed to receive a holding-frame.

2. Asa new article of manufacture, a double mirror comprising singlemirrors placed back to back and united by an intermediate layer ofcement disposed between them, in

said layer of cement and a holding-frame adapted to seat in said groove.

In testimony whereof I have signed my name, in the presence of twosubscribing witnesses, this 13th day of November, 1903.

ALFRED LITTAUER.

Witnesses:

GUs'rAvF. Rrorrrnn, H. G. KIMBALL.

